. joining us now, steve hardy, former police detective, who worked, unfortunately, these kinds of homicides over the years. walk us through what police are going through right now, steve. >> well, first of all, wolf, they certainly already have tended to the wounded, get the injured out of there, secure that area, locate as many witnesses as possible. that school is going to be closed down for probably a lengthy period of time, while they conduct their investigation. they're going to put the pieces together, in chronological order, see how this happened, was he killed in self-inflicted gunshot or did the teachers and the principal fight back, disarming and possibly killing him? >> now they will go ahead and try to figure out why this happened, why a gunman in his 20s, went into this particular school, with weapons, and started killing kids. >> yeah, unfortunately this is the platform that people like this are seeking out, educational institutions, soft targets. if you want to commit a crime like this. unfortunately we don't have in place right now the mechanism to protect our young and our